Hi I am new to this forum and also for Zimbra mail server, I had configured Zimbra open source 8.0.2 for my office. It is working fine, now I want to restrict a group users should mail only to few domain and others can send to any domain. I had find some info in this URL
HTML Code:
http://wiki.zimbra.com/index.php?title=Restrict_users_to_certain_domain
which I feel will suit my requirement. After following the steps found in the URL still users are able to send mails to restricted domain.

When I stop and start zmmtactl I am getting the below error

zmmtactl start
Rewriting configuration files...done.
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/local_domains
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/local_domains.db
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/main.cf
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/master.cf
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/restricted_senders
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/restricted_senders.db
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/tag_as_foreign.re
/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.10-20121007.2z/conf/tag_as_originating.re
/postfix-script: starting the Postfix mail system
Starting saslauthd...done.
Started opendkim: pid 4894

Please help me out in this